President Barack Obama, right, gestures as he stands next to Mexico's President Felipe Calderon during a joint press conference with Canada's Prime Minister Stephen Harper, not shown, in Guadalajara, Mexico, Monday Aug. 10, 2009. President Obama huddled Monday with Calderon, and Harper, for a North American summit, where the swine flu epidemic and knotty disputes over cross-border trade dominated a lengthy agenda President Barack Obama, right, and Mexico's President Felipe Calderon talk during a photo session in Guadalajara, Mexico, Monday Aug. 10, 2009.